Speaker



FIG. 1 is a perspective view of a speaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof where the right side view is a mirror image; and,

FIG. 5 is a top plan view thereof where the bottom plan view is a mirror image.

The dashed lines shown in the center of FIGS. 1-5 represent a symbolic break in the length of the speaker. The appearance of any portion of the article between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 